Tire-valve.



J. A. BOWUEN.

TIRE VALVE.

APPLICATION FILED MAY 6. m13.

Patented Nov. 21, 1915;

I ha

were

TIRE-verve.

Beit known that I, JUNIUS A.. BWDEN, a citizen ofthe' Unitedl States, residing at Los Angeleg'iri the county of Los Angeles and ingis a spee'ification.- This invention relates to tlrevalves and to Statesof California, v'have invented a new and useful TirefValve, of whicbfthe follow'- improvements! ovelvalves'. heretofore invente d"by i11e,for which applications have been filed October v2l, 1912, Serial No.

727,()82, and'February- 19,' 1918-, Serial No. 74C9,548.j

The objects .of the present invention 'are to previ'de theretaini'ng sleeve With a bridge adaptednto engage the in of tbe-valve so that the entire valve, ine. riding-the retaining sleeve iswithdrawn asf a unitand the parte .are retained jtogether as a unit when Witli drawn', thereby lavoiding less of any of the parteand the-possibility of di'sarrangement.

Another object is to provide means for preventing the rubber seat from eontr'aeting to closeits center orifice 'and thereby restrict the-passage 'of air.,

Another'object is t'ouprevide removable cap, which :is-constructed with' a revoluble- -internaldisk within which the' rubber gasket is connedand the rubber thereb 4kept from contant with-the rotgiting surance. of fthe.'

.outerv portion ci -the Cep, so..tl1at when the eap is being rem'oved 'Or applied, thev rotation ofthe o'iiter portion oftheeap'ivillnot come in eontaetwith the--rnbber to .distort the same.

Otherfadvantages '-be =brougbt ont thefollowing deseriptign.

- Referringto the {irai/rings .Figure l is a sidejeleva'tion of't'evalve. Fig. 2 is'an enlarged ln ..'gitudinall` section through the valve: Fig'. 3'jefa-asini@elevation artly in .and'shoiving the c'ap .inverted'in'position for screwing-the 'valve intq or out of# position.'

` is a perspectivedetail oftheretaining section of the upper portion,A of e' va'lve3 2 and inainthr'eaded pertien' 3v with enter- Apparition mea my e, 191s. serial No. 765,923.

Iits inner edge slightly raised toj Cause a '-sli-glt"izi lentatien in axrubberseatf'ga i v thereby -produce'auperfect air closlil" by' these threads; it will exert the proper suiiicient friction to retain 'the valve p m 'A Specification of Letters Patent. I )PatentedNv 21, :t9-1 6;-

nally threadedrfedueed end f1; :The-casiiig l l has aveentral bore 5 which Within.""tlie '1"e 'A G, thc latter being' guttered as 'shoviirnyvvitli this `'xyiiit. 'The rubber sea t yT 'i's" for-ated and held in place by a' s'eaftjA e taining;v disk 8 which isij'orined` With" a1i 165 annular flange 9 extending, intotheI "per foratedv portion of the rbber seat' to prevent' the seat from vcontrm'tiii g tli e center air' lilefwlien Yit is sqiiee2ecl*l; et\'vee1 1fth 8 and s liol'lldei- 6. .Tlu's^ t he 'ange' tains 'the air passageat-'tljis uint Wr uniforinjarea.; retaining 4'sleeve '()A 1s screwed' against th'fe'di ICS-tonelli the' latter andriibber' valveseat 57 in }p 's itit 1i', l 'sleeve 1 0 is"pxj0vide'd` With-external threads-7- 11 for a definite portion o'f its-length, aii'dtlie reduced portion 4 of the'feasing l is-inte n'allythreaded at l'fcnnf 'leiifnite'dijstali such that when the retaining'sl'eeve '10 f 1s' screwed tothe -lowerrnostjpintpermiti pressure upon the rubber seat/ 7 tfeieetj a' perfect air'closure withoutg-nnduecompresl eionofthe'rubber." Y The retailing sleeve-.10 vis. provided witli 85 a bridge '13 preferably*.integrel'}therevvith', and slidably extendingthrciigl 'tlie 'bridge '13 is' a valve pin .ftAvhieheafrriesavalve'15,' the upper' surfaee ffwhili'f'is' egincave-"asf shown, therebyu forr'ning'an edgeadapted-'td slightlyi nden't. the4 riibb'er seat to 'ferm Va perfeet.airtight seat there 7th. The pin-'1.4 is driven in tetlfiel valve nently in tlie desired position, and the vaQY 3 5' is provided with a series of 'longitildm' ythe 'passage 5 and thereby-'ineintaih the in perfect alinement vvith-ftheseat? a proper fit therewith- 'et all times.

The lower end of the valve 15 has a redueedf 1 10 han lili

rotating the cap 20.

portion 1,8 to which is secured one end of a compression-spring 19, the inner end 'of the spring 19 bearing against a sleeve 20 which is frictionally retained in the bore 5 of the casing 1, with suicient friction to-forrn a permanent seat for the inner end of the spring.

The enlargement lf( is at a pointsuliieiently above the bridge 13 to permit the pm 14 to be displaced the required distance to o en the valve 15 for the passage of air past t e valve, and it acts tb hold all of the parts of the inner valve together, viz. seat 7, sleeve 10, seat supporting disk 8, rubber Seat 9, valve 15 and spring 19 so that these parte are all removed as aunit and remain tother after removed. This prevents oss of 'y of the parts or diserrangement, and ena les the valve to be easily reinserted in position and insures the proper relations of the, parts when reinserted.

2O is the outer valve cap which is screwed on the -reduced threaded portion 4 of the valve casing. The valve cap 20 has an en largedV portion 2l within which is located aplate 22 with an .outer depending flange 23, and with a center projection 24: adapted to bear against the center of the inner wall of the enlarged portion 21 and form a pivot upon which the cap 21 turns when being screwed in either direction. A'rubber seat 25 is retained in the plate 22 und the, plate 22 has a depending center annular' flange 26 which prevents the rubber '25 from contracting the size of its center orilice vwhen it is squeezed against the outer im of the end of the valve casing 1. The perforated portion of the rubber 25 is to receive the outer and of the valve pin 14nr whenthe cap 20 is screwed down tight, and thereby preventing u nseating the valve 15.

The cap 20 has a hollow tapered extension ,27 which by inserting the' cap as shown in'Fig. 3,' is adapted to be inserted into the retaining sleeve 10 and wedged therein with sufficient friction to turn the retaining sleeve into or out of position by The important advantage of this feature is thatwhile suicient riction isaiforded for screwing the retainin sleeve into its innermost position and p ace the rubber seat 7 under the requisite tensionfthat it .will automatically slip when such (position has been'reached and prevent un ue pressure being bro ght to bear upon the Darts when screwing t e valve into position.

A divisional application Serial No. 87 ,401'

filed March 29, 1916, has beenv filed for-eertain subiect matter relating to the cap and its combination, with .the valve.- What I claim is: 1. In a .tire valve, a'body 4having an in i terior bore andan undercut shoulder there in, a removable valve seat in said bore, a

vided with means for engaging snid pin,.

to cause the valve and sent to be lifted when the retaining sleeve is removed.

2. In a tire valve, a body .having un interior bore and an undercut shoulder therein, a rembvable vulve sent in said bore, a valve below snid sont and adapted to. beur aga-inst the sent, a pin on said vulve projecting up through snid sent, Suid pin havlng un enlargement, :1nd ya retuiningsleeve removablyr secured 1n sind bore for holding said seat in position ugninst said shoulder, said retaining sleeve having u relatively wide interior und'a bridge across its intei'ior through which said pin extends, and adapted to engage the enlargement on said 1n. p 3. In a tire valve, a bod)T having un interior bone and an internal undercut shoulder, a removable valve resting on said shoulder, a valve bearing against the underside of said seat, a pin on said-valve projecting up through said sent, a retaining sleeve screwed in Said bore for holding the removable sent -in position against said shoulder, said retaining sleeve having a relatively wide interior and a bridge across its interior, and said pin extending through said bridge und having :in enlargment above said bridge.

4. 1n a tire valve, a body having an in terior bore and an internal undercut shouL der, a removable 'valve resting on said shoulder, a valve bearing against the underside of said seat, a pin on said valve projecting up through said seat, a retaining sleeve screwed in said bore for holding the f .said bridge and having an enlargment above said bridge, and a. disk between said retaining sleeve and removable seat for directly renewing the endthrust of the-retaining sleeve.

' 5. In a tire valve, a body having an interior bore and an intern'l undercutshoulder, n. removable seat resting on said shoul der, a valve bearing against the underside .of said seat, a pin on said valv'e projecting up through said seat, a retaining sleeve screwed insaid bore forholding the re movable seat in position against said shoul- 12s er, said retaining sleeve having aA relativelv wide interior and a bridge across said interior, said pin extending through said bridge and having an enlargment above said bridge, und a disk between said retaining sleeve and removable seat for directly receiving the end thrust of the retaining sleeve, said disk having an annular flange extending "through said removablel seat and preventing the inward contraction of said seat, and a square shouldei; formed by the under face 1of the disk and the inner face of. the flange.

6. 1n a tire valve, a bod)r having an in-V terior bore/and a undercut shoulder therein, a rubber seat resting agalnst said shoulder,

a disk resting against the rubber seat, said seat hav-ing a vcentral air passage, said disk' havingv an 'annular longitudinal flange which piments into said air passage and prevents the inward contraction of the rubber seat,

and a square shoulderl formed between the' under face of said disk and the' inner face of the fia-nge, a valve below said seat adapted to close against the seat,-a pinprojeoting 2'0 from said valve throughsaid an' passage, and` a retaining sleeve m said bore screwed agalnst said disk for holding said rubber seat against said shoulder, said retaining sleeve having a relatively Wide interior an (a bridge across said interior, said pil-1 being slidablein said bridge, and having-'an enlargmenft-on the. outer side" of thebridge.

AIn testimony-whereof, I have hereunto set my v'hand at' Los Angeles, California, 30

@is 25th ay ofnprn, i913.-

JUNiUs'A. BOWDEN.

In presence (if- GEORGE T.' HAGKLEY, F. Amon CRANDALL. 

